HCD-GTZ2, HCD-GTZ2I, HCD-GTZ3, HCD-GTZ3I, MHC-GTZ2, MHC-GTZ2I, MHC-GTZ3, MHC-GTZ3I - Sony Audio Service Manual (repair manual). Page 11

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HCD-GTZ2/GTZ2i/GTZ3/GTZ3i
11
TUNER  STEP  CHANGE 
(Except AEP and UK models)
The step interval of AM channels can be toggled between 9 kHz 
and 10 kHz. This mode is not available for AEP and UK models.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2.  Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press 
[
?/1
 STANDBY] button to turn off the system.
4.  Press [ENTER] and [
?/1
 STANDBY] buttons simultaneous-
ly. The system turns on automatically. The message “AM 9K 
STEP” or “AM 10K STEP” appears on the fl uorescent indica-
tor tube and thus the channel step is changed.
CD  SHIP  MODE (WITH  MEMORY  CLEAR)
This mode moves the optical pick-up to the position durable to 
vibration and clears all data including preset data stored in the EE-
PROM to initial conditions during the next AC-In. Use this mode 
when returning the set to the customer after repair.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2.  Press [CD] button to select CD function.
3. Press 
[
x], [DISC 1] and [
?/1
 STANDBY] buttons simultane-
ously. The system turns off automatically.
4.  After the “STANDBY” blinking display fi nishes, a message 
“MECHA LOCK” is displayed on the fl uorescent  indicator 
tube and the CD ship mode is set.
5.  Unplug the power supply cable.
CD  SHIP  MODE (WITHOUT  MEMORY  CLEAR)
This mode moves the optical pick-up to the position durable to 
vibration. Use this mode when returning the set to the customer 
after repair.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2.  Press [CD] button to select CD function.
3.  Press [DISC SKIP/EX-CHANGE] and [
?/1
 STANDBY] but-
tons simultaneously. The system turns off automatically.
4.  After the “STANDBY” blinking display fi nishes, a message 
“MECHA LOCK” is displayed on the fl uorescent  indicator 
tube and the CD ship mode is set.
5.  Unplug the power supply cable.
CD  TRAY  LOCK  MODE
This mode let you lock the disc tray. When this mode is activat-
ed, the disc tray will not open when [
Z OPEN/CLOSE] button 
or [DISC SKIP/EX-CHANGE] button is pressed. The message 
“LOCKED” will be displayed on the fl uorescent indicator tube.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2.  Press [CD] button to select CD function.
3. Press 
[
x] and [Z OPEN/CLOSE] buttons simultaneously and 
hold down until “LOCKED” or “UNLOCKED” displayed on 
the fl uorescent indicator tube (around 5 seconds).
FACTORY  PRESET
This mode is use to load all the factory use preset frequencies 
into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 
1-FM 20 and AM 1-AM10 are set to the minimum frequency.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2. Press [SURROUND], [
x] and [DISC 1] buttons simultane-
ously and the message “FACTORY” appears on the fl uores-
cent indicator tube. The function is changed to TUNER auto-
matically.
VACS  DISPLAY
This mode is used to check the VACS level.
Procedure:
1. Press 
[
?/1
 STANDBY] button to turn on the system.
2.  Press [ERASE], [
x] and [ENTER] buttons simultaneously.
3. The fl uorescent indicator tube displays “VACSx”. “x” repre-
sents Conventional VACS level (Triggered by signal level).
4.  To release from this mode, do the step 2 again.
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